August 21, 2026: Thunder Bay Weekend Weather — Saturday Showers Give Way to a Sunny Sunday

Thunder Bay weekend weather for August 22-23, 2026: Saturday brings sun, northwest winds gusting to 40 km/h and a 30% chance of late showers before a sunny 22°C Sunday. Thunder Bay – WEATHER DESK – Thunder Bay is heading toward a generally favourable late-summer weekend, although Saturday will come with a few weather complications. Sunshine […] The Article August 21, 2026: Thunder Bay Weekend…